Derry Girls received praise once again last night for a brilliant fourth episode.

The episode has everything we hoped for, it was filled with funny one-liners, a great storyline and lots of nostalgia. Last night the girls met Katya, a girl from Ukraine, who had travelled to Ireland following the Chernobyl nuclear disaster. While Erin and the girls tried their best to entertain and get to know their new guest, she had other plans. The group were brought together with the rest of their school gang for a house party, which served up a scene that went down very well at home. The whole group started dancing to Saturday Night, giving viewers a trip down memory lane. They were loving it.

??the Saturday Night routine ... omg school flashback #Derrygirls

— JJ (@JJgaelicgirl) January 25, 2018

The dance to Saturday Night on Derry Girls last night..I am dead. ?

— Faye C White (@fayecwhite) January 26, 2018

Saturday night, whigfield and the dance moves. There's some memories I'd forgotten lol #derrygirls

— Brian Robinson (@BrianRo76841713) January 26, 2018

There has to be a #DerryGirls soundtrack, please please please! Last night's music ? I admit, I did do the Saturday Night routine sitting on the couch! And A Woman's Heart was a lovely touch at the end.

— Lorraine Mostafa (@LorraineM1978) January 26, 2018

I LOVE Derry Girls. The Saturday Night dance. MEMORIES.

— Lauren O (@chelseagirl2) January 26, 2018

Saturday Night dance routine #DerryGirls ?Brings me right back to 6th form ? @LisaMMcGee

— Annalisa (@herbietwo) January 25, 2018

I still know the dance moves to saturday night!! #DerryGirls #90steen

— Fiona BarrettPalfrey (@Fi_Barrett) January 25, 2018

100% blaming Derry Girls for having Saturday Night by Whigfield stuck in my head.

— Katy-Anne ? (@OhFFSKaty) January 26, 2018

Those 90s tunes on #DerryGirls though? Massive incl. Only a Womans Heart. And Whigfields "Saturday Night".

— Daithi O'Laoghaire (@1Cunionsandphey) January 26, 2018